Properties

Label 19950k
Number of curves $4$
Conductor $19950$
CM no
Rank $1$
Graph

Related objects

Downloads

Learn more

Show commands: SageMath
E = EllipticCurve("k1")
 
E.isogeny_class()
 

Elliptic curves in class 19950k

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
19950.m4 19950k1 \([1, 1, 0, 75, -1875]\) \(2924207/102144\) \(-1596000000\) \([2]\) \(8192\) \(0.44583\) \(\Gamma_0(N)\)-optimal
19950.m3 19950k2 \([1, 1, 0, -1925, -31875]\) \(50529889873/2547216\) \(39800250000\) \([2, 2]\) \(16384\) \(0.79241\)  
19950.m1 19950k3 \([1, 1, 0, -30425, -2055375]\) \(199350693197713/547428\) \(8553562500\) \([2]\) \(32768\) \(1.1390\)  
19950.m2 19950k4 \([1, 1, 0, -5425, 111625]\) \(1130389181713/295568028\) \(4618250437500\) \([2]\) \(32768\) \(1.1390\)  

Rank

sage: E.rank()
 

The elliptic curves in class 19950k have rank \(1\).

Complex multiplication

The elliptic curves in class 19950k do not have complex multiplication.

Modular form 19950.2.a.k

sage: E.q_eigenform(10)
 
\(q - q^{2} - q^{3} + q^{4} + q^{6} + q^{7} - q^{8} + q^{9} - q^{12} - 2 q^{13} - q^{14} + q^{16} + 2 q^{17} - q^{18} + q^{19} + O(q^{20})\) Copy content Toggle raw display

Isogeny matrix

sage: E.isogeny_class().matrix()
 

The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the Cremona numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)

Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with Cremona labels.